SMTL ID : 1fp2.1

CRYSTAL STRUCTURE ANALYSIS OF ISOFLAVONE O-METHYLTRANSFERASE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.40 Å

Oligo State

homo-dimer

Ligands

2 x SAH: S-ADENOSYL-L-HOMOCYSTEINE(Non-covalent)

SAH.1: 17 residues within 4Å: Chain A: W.151, F.164, M.168, G.196, G.198, D.219, R.220, V.223, G.238, D.239, M.240, F.241, K.253, Y.254, I.255, W.259 Ligands: HMO.2 16 PLIP interactions: 16 interactions with chain A Hydrogen bonds: A:G.198, A:R.220, A:D.239, A:M.240, A:K.253, A:K.253 Water bridges: A:T.202, A:T.202, A:R.220, A:R.220, A:K.253, A:K.253, A:K.253 Salt bridges: A:K.253 pi-Stacking: A:W.151 pi-Cation interactions: A:R.220 SAH.3: 17 residues within 4Å: Chain B: W.151, F.164, M.168, G.196, G.198, D.219, R.220, V.223, G.238, D.239, M.240, F.241, K.253, Y.254, I.255, W.259 Ligands: HMO.4 17 PLIP interactions: 17 interactions with chain B Hydrogen bonds: B:G.198, B:R.220, B:D.239, B:D.239, B:M.240, B:K.253, B:K.253 Water bridges: B:T.202, B:T.202, B:R.220, B:R.220, B:K.253, B:K.253, B:K.253 Salt bridges: B:K.253 pi-Stacking: B:W.151 pi-Cation interactions: B:R.220

2 x HMO: 4'-HYDROXY-7-METHOXYISOFLAVONE(Non-covalent)

HMO.2: 13 residues within 4Å: Chain A: V.118, L.123, S.124, Y.127, F.142, F.164, M.168, Y.254, H.257, N.258, N.310 Chain B: Y.25 Ligands: SAH.1 6 PLIP interactions: 5 interactions with chain A, 1 interactions with chain B Hydrophobic interactions: A:L.123, A:Y.127, A:F.164 Hydrogen bonds: A:N.258, B:Y.25 pi-Stacking: A:F.142 HMO.4: 13 residues within 4Å: Chain A: Y.25 Chain B: V.118, L.123, S.124, Y.127, F.142, F.164, M.168, Y.254, H.257, N.258, N.310 Ligands: SAH.3 7 PLIP interactions: 5 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:L.123, B:Y.127, B:F.164 Hydrogen bonds: B:N.258, A:Y.25, A:Y.25 pi-Stacking: B:F.142

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zubieta, C. et al., Structures of two natural product methyltransferases reveal the basis for substrate specificity in plant O-methyltransferases. Nat.Struct.Biol. (2001)

Release Date

2001-03-07

Peptides

ISOFLAVONE O-METHYLTRANSFERASE: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

ISOFLAVONE O-METHYLTRANSFERASE

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